smooth muscle
Yes, your stomach is lined with mucus. The chemicals the stomach secretes (i.e., pepsin) are designed to digest protein. But your stomach walls are also made of protein! The mucus coats the lining of your stomach so the chemicals do not destroy the lining.
stomach
stomach
Smooth muscles
Mucus to be less specific
Smooth muscles
The Stomach
it lined with mucus to help digest the food chemically and to keep the stomach from acid
The stomach which is lined with ridges called Rugae the small intestines, lined with vili and micro-vili
All humans have one (1) stomach.
Hormones do not have anything to do with a grumbling stomach. The stomach walls are lined with muscle that contracts and expands all on it's own. Any food and liquids in the stomach cause grumbling noises as the stomach walls expand and contract.